126 lines
3.4 KiB
C
126 lines
3.4 KiB
C
/*
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* Copyright (C) 2011 - EATON
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*! \file nutscan-init.c
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\brief init functions for nut scanner library
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\author Frederic Bohe <fredericbohe@eaton.com>
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*/
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#include "common.h"
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#include <ltdl.h>
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#include <unistd.h>
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#include <dirent.h>
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#include <stdio.h>
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#include <string.h>
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int nutscan_avail_avahi = 0;
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int nutscan_avail_ipmi = 0;
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int nutscan_avail_nut = 0;
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int nutscan_avail_snmp = 0;
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int nutscan_avail_usb = 0;
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int nutscan_avail_xml_http = 0;
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int nutscan_load_usb_library(const char *libname_path);
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int nutscan_load_snmp_library(const char *libname_path);
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int nutscan_load_neon_library(const char *libname_path);
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int nutscan_load_avahi_library(const char *libname_path);
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int nutscan_load_ipmi_library(const char *libname_path);
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int nutscan_load_upsclient_library(const char *libname_path);
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/* FIXME: would be good to get more from /etc/ld.so.conf[.d] */
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char * search_paths[] = {
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LIBDIR,
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"/usr/lib64",
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"/lib64",
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"/usr/lib",
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"/lib",
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"/usr/local/lib",
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NULL
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};
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const char * get_libname(const char* base_libname)
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{
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DIR *dp;
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struct dirent *dirp;
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int index = 0;
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char *libname_path = NULL;
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char current_test_path[LARGEBUF];
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for(index = 0 ; (search_paths[index] != NULL) && (libname_path == NULL) ; index++)
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{
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memset(current_test_path, 0, LARGEBUF);
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if ((dp = opendir(search_paths[index])) == NULL)
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continue;
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while ((dirp = readdir(dp)) != NULL)
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{
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if(!strncmp(dirp->d_name, base_libname, strlen(base_libname))) {
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snprintf(current_test_path, LARGEBUF, "%s/%s", search_paths[index], dirp->d_name);
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libname_path = realpath(current_test_path, NULL);
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if (libname_path != NULL)
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break;
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}
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}
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closedir(dp);
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}
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/* fprintf(stderr,"Looking for lib %s, found %s\n", base_libname, (libname_path!=NULL)?libname_path:"NULL");*/
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return libname_path;
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}
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void nutscan_init(void)
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{
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#ifdef WITH_USB
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nutscan_avail_usb = nutscan_load_usb_library(get_libname("libusb-0.1.so"));
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#endif
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#ifdef WITH_SNMP
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nutscan_avail_snmp = nutscan_load_snmp_library(get_libname("libnetsnmp.so"));
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#endif
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#ifdef WITH_NEON
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nutscan_avail_xml_http = nutscan_load_neon_library(get_libname("libneon.so"));
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#endif
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#ifdef WITH_AVAHI
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nutscan_avail_avahi = nutscan_load_avahi_library(get_libname("libavahi-client.so"));
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#endif
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#ifdef WITH_FREEIPMI
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nutscan_avail_ipmi = nutscan_load_ipmi_library(get_libname("libfreeipmi.so"));
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#endif
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nutscan_avail_nut = nutscan_load_upsclient_library(get_libname("libupsclient.so"));
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}
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void nutscan_free(void)
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{
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if( nutscan_avail_usb ) {
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lt_dlexit();
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}
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if( nutscan_avail_snmp ) {
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lt_dlexit();
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}
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if( nutscan_avail_xml_http ) {
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lt_dlexit();
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}
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if( nutscan_avail_avahi ) {
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lt_dlexit();
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}
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if( nutscan_avail_ipmi ) {
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lt_dlexit();
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}
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if( nutscan_avail_nut ) {
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lt_dlexit();
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}
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}
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